The best course of action for the project manager in this situation is to review the stakeholder's communication requirements. This aligns with the principles of stakeholder engagement and communication management in project management. By reviewing the communication requirements, the project manager can ensure that the information needs of the stakeholder are being met without causing undue disruption to the team's work. This may involve adjusting the communication plan to provide the stakeholder with the necessary updates in a manner that is less intrusive to the team member's workflow.
References: = The answer is verified by the principles found in the PMBOKGuide, which emphasizes the importance of managing stakeholder expectations through effective communication strategies1. Additionally, the Professional in Business Analysis Reference Materials supports the approach of tailoring communication to meet the needs of stakeholders2.